40mm Injection Molding Screw Types Design HRC 58 - 60

Basic Information

Place of Origin:	Made in Suzhou, China
Brand Name:	KTL
Certification:	ISO9001
Model Number:	Diameter: 40

Minimum Order Quantity:	1 set
Price:	USD 6,660 / set
Packaging Details:	Composite eco-friendly wooden box
Delivery Time:	60 to 90 days
Payment Terms:	T/T
Supply Ability:	300 sets

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Detail Information

Component :

Screw 、Screw Tip Assembly 、Barrel Head (Flange) Nozzle

Material:

All-Hard Alloy

Main Alloy Composition:

Main Alloy Composition

Heat Treatment Process:

Quenching

Highlight:

40mm injection molding screw types

HRC 60 injection molding screw types

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Product Description

NISSEI Screw And Barrel Assembly

Screw & Barrel Assembly Technical Specifications

Component	Material	Main Alloy Composition	Heat Treatment Process	Hardness	Surface Treatment	Key Features
Screw	KTL-202B All-Hard Alloy	Cr 8.2%, V 1.2%, Mo 2%, Co 1%	- Quenching: 1020–1050°C- Tempering: 550–570°C (≥3 times)- Tail annealed at high temperature	HRC 60 ± 2	Titanium coating (Ti)	Excellent wear resistance, enhanced corrosion resistance, extended service life
Screw Tip Assemblies	KTL-202B All-Hard Alloy	Cr 8.2%, V 1.2%, Mo 2%, Co 1%	- Quenching: 1020–1050°C- Tempering: 550–570°C (≥3 times)- Tail annealed at high temperature	HRC 60 ± 2	Titanium coating (Ti)	High resistance to abrasion and pressure, improved durability under high-load conditions
Barrel	KTL-ST30 Double Alloy (Fe-Ni Base)	Inner alloy: Fe, Ni, Cr, C, Co, B	—	Base: HRC 26–28Inner layer: HRC 59–61	—	- Alloy thickness: 1–2 mm (each side)- Low thermal expansion- High resistance to high-temperature softening
Flange	Alloy Steel + Chromium Plating	—	- Heat treatment + electroplating	Base: HRC 30–32Cr layer: HRC 62–64	Chromium plating (0.05–0.08 mm)	Improved wear resistance and corrosion protection
Nozzle	SKD61	—	- Quenching: 1020–1050°C- Tempering: 550–570°C (≥2 times)	HRC 50 ± 2	—	Excellent thermal fatigue resistance and toughness

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